Factor out the xorriso version-checking code

debian/changelog

@@ -3,8 +3,6 @@ debian-cd (3.1.15) UNRELEASED; urgency=low
   [ Steve McIntyre ]
   * Add "UEFI" text to the UEFI installer menu title to make it easier for
     end users to distinguish between UEFI and BIOS boot.
-  * tools/apt-selection: pass APT::Architectures:: when calling apt;
-    otherwise if we're running on a multi-arch system apt will break
 
   [ Samuel Thibault ]
   * Make kfreebsd & hurd images usbkey-bootable. Closes: #739422
@@ -12,6 +10,11 @@ debian-cd (3.1.15) UNRELEASED; urgency=low
   [ Raphaël Hertzog ]
   * Fix code extracting the xorriso version.
 
+  [ Steve McIntyre ]
+  * tools/apt-selection: pass APT::Architectures:: when calling apt;
+    otherwise if we're running on a multi-arch system apt will break
+  * Factor out the xorriso version-checking code
+
  -- Steve McIntyre <93sam@debian.org>  Tue, 11 Feb 2014 01:57:01 +0000
 
 debian-cd (3.1.14) unstable; urgency=medium

tools/boot/jessie/boot-hurd

@@ -22,12 +22,7 @@ fi
 
 case "$MKISOFS" in
     *xorriso*)
-        XORRISO_VER=$($MKISOFS --version 2>&1 | awk '
-            /^xorriso version/ {
-                 split($4, ver, ".")
-                 print ver[1]*10000+ver[2]*100+ver[3]
-            }')
-        # OK
+        XORRISO_VER=$(xorriso_version)
         ;;
     *)
 	echo "ERROR: debian-cd now depends on xorriso for making x86 bootable CDs."

tools/boot/jessie/boot-kfreebsd

@@ -29,12 +29,7 @@ fi
 
 case "$MKISOFS" in
     *xorriso*)
-        XORRISO_VER=$($MKISOFS --version 2>&1 | awk '
-            /^xorriso version/ {
-                 split($4, ver, ".")
-                 print ver[1]*10000+ver[2]*100+ver[3]
-            }')
-        # OK
+        XORRISO_VER=$(xorriso_version)
         ;;
     *)
 	echo "ERROR: debian-cd now depends on xorriso for making x86 bootable CDs."

tools/boot/jessie/boot-x86

@@ -29,12 +29,7 @@ fi
 
 case "$MKISOFS" in
     *xorriso*)
-        XORRISO_VER=$($MKISOFS --version 2>&1 | awk '
-            /^xorriso version/ {
-                 split($4, ver, ".")
-                 print ver[1]*10000+ver[2]*100+ver[3]
-            }')
-        # OK
+        XORRISO_VER=$(xorriso_version)
         ;;
     *)
 	echo "ERROR: debian-cd now depends on xorriso for making x86 bootable CDs."

tools/boot/jessie/common.sh

@@ -119,3 +119,12 @@ try_di_image_cache() {
 	esac
     fi
 }
+
+# Grab the xorriso version and turn it into a number we can use
+xorriso_version() {
+    $MKISOFS --version 2>&1 | awk '
+	`/^xorriso version/ {
+	    split($4, ver, ".")
+	    print ver[1]*10000+ver[2]*100+ver[3]
+	}'
+}

tools/boot/wheezy/boot-x86

@@ -37,12 +37,7 @@ fi
 
 case "$MKISOFS" in
     *xorriso*)
-        XORRISO_VER=$($MKISOFS --version 2>&1 | awk '
-            /^xorriso version/ {
-                 split($4, ver, ".")
-                 print ver[1]*10000+ver[2]*100+ver[3]
-            }')
-        # OK
+        XORRISO_VER=$(xorriso_version)
         ;;
     *)
 	echo "ERROR: debian-cd now depends on xorriso for making x86 bootable CDs."

tools/boot/wheezy/common.sh

@@ -92,3 +92,13 @@ calc_boot_size() {
     size=$[($(stat -c%s "$FILE")+2047)/2048]
     echo $size
 }
+
+# Grab the xorriso version and turn it into a number we can use
+xorriso_version() {
+    $MKISOFS --version 2>&1 | awk '
+	`/^xorriso version/ {
+	    split($4, ver, ".")
+	    print ver[1]*10000+ver[2]*100+ver[3]
+	}'
+}
+